Questions dealing with Ubuntu's layout of files, permissions, and files that reside in special locations on disk.

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6
votes
1answer
268 views

Where on the filesytem could a user find the Unity scope files?

I am wanting to find the Unity scope folder so that I can study how the scopes are set up and programmed. Where on the filesytem could I find the Unity scope files?
6
votes
3answers
3k views

What can I move to RAM drive to have the system working faster?

Which files/directories can I move to RAM drive to have the system working faster? I'm planning to upgrade my laptop's memory to 8GB soon, so I'll have some fast memory to use. How to configure the ...
6
votes
2answers
7k views

Can I disable full-disk encryption?

I recently installed Ubuntu 12.10 and it requires a passphrase to boot up (I installed it with an encrypted file system). Do I have to reinstall to change to a standard unencrypted file system?
6
votes
2answers
524 views

Tell the kernel to strongly cache a particular directory

This question is a rephrasing of Optimizing EXT4 performance. I have a directory that contains build files, most very small, but totaling 5.6G. I usually access the same subset of files (some ...
6
votes
2answers
370 views

How can I create a filesystem “view” of a folder that excludes certain files?

I want to have a path in the filesystem that shows the entire contents of some other path, excluding a few certain files of my choosing. For example, if the following already exists, original-path ...
6
votes
3answers
795 views

Symlinks and their paths are confusing - how can they be used effectively?

When exploring directories from a symlink (symbolic link) using Nautilus or Gnome Commander, the directory structure is displayed as if the symlink were a regular directory. When I open a document, ...
6
votes
3answers
526 views

Files button on the side opens a new window instead of minimized window? [closed]

If I open my hard drive from the hard drive icon (I have 2 hard drives) and then I minimize it, it minimizes to the files and when I try to restore it it opens a new file manager (this happens weather ...
6
votes
2answers
4k views

How to convert ext2 to ext4?

I installed Ubuntu 12.10, and I don't know why, I have an ext2 partition. How can I convert this ext2 file system to an ext4? Will I lose all my data?
6
votes
1answer
2k views

What is a safe ulimit ceiling?

This is the output of ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) ...
6
votes
1answer
1k views

System displays “File system maintenance error, press ctrl+d” while booting

In my office I've Ubuntu 8.10 desktop installed and it's running for a long time. When ever the system is started, I'll get a file system maintenance error and something it's prompted for the root ...
6
votes
1answer
1k views

How do I make noatime mounts default?

I'm making an Ubuntu derivative, and I want to make noatime the default mount option for all filesystems (instead of relatime which is default in Ubuntu). There seems to be a boolean default_relatime ...
6
votes
3answers
913 views

1TB SATA HDrive on Marvell Adapter disappears after 10.10 upgrade - Why?

Thanks for taking the time. I have a problem I've never had after an upgrade. One of my hard drive, a 1TB NTFS drive connected with the marvell SATA connector (88sx or smth like that ) to my Asus ...
6
votes
2answers
6k views

Why does Ubuntu 13.10 not detect my Win7 partition?

I'm trying to install Ubuntu 13.10 alongside Windows 7 on my DELL INSPIRON 14z 5423 laptop and I'm new to all of this. I'm using the Ubuntu 13.10 64-bit ISO burned onto a CD. The first time I tried ...
6
votes
1answer
923 views

Ubuntu installer thinks my drive is empty, does not see windows paritions

I am trying to install Ubuntu10.10 64bit. I just installed Windows 7 64bit moments ago. My drive is currently partitioned like so: 100MB Boot partition (automatically made by windows 7 installer) ...
6
votes
1answer
574 views

File operations freeze when putting files larger than 10MB on an SD card [closed]

I have the newest Ubuntu 13 with all updates. When copying files to my 32GB SD card, the file operations freeze just before it finishes. It does not complete. Files greater than 10MB do this. ...
5
votes
5answers
6k views

How to enter to the directory with 'cd' command if it has 700 permission

I tried to use sudo cd name_of_dir but getting following error message: sudo: cd: command not found. Is there any other way to open a directory which has 700 permission?
5
votes
3answers
3k views

The best choice of linux file system and software that can be accesed from Windows

I am curently having ubuntu and win 7 dual boot and I want to delete my windows 7 and format all my partitions to use a linux file system. But I want to leave a door open in case I have any problems ...
5
votes
2answers
465 views

Where is the journal stored?

I was reading trough the link on journaling-filesystems and i would like to know where exactly is the journal stored in my Harddisk. Some pointers on this image shown below Thanks, Sen
5
votes
3answers
496 views

Is possible to make symlinks that 'follow' the file?

Behavior: me@local: tree . |-- ba | `-- file.txt |-- foo | `-- file.txt -> ba/file.txt `-- foobar now, let's say i move the file.txt from ba to foobar: me@local: mv ba/file.txt ...
5
votes
2answers
5k views

What is the use of /etc/hosts?

I'm very new to Ubuntu and I want to know: what is the exact use of /etc/hosts? Lets say I'm adding this into it : 127.0.x.x mydomain What does that mean?
5
votes
2answers
4k views

What is the default character encoding?

I don't myself know how deep this question actually goes (for example, for all I know there could be several, depending on my task). Particularly, I am interested in what kinds of strings are used to ...
5
votes
1answer
162 views

How to combine similarly structured directories?

I have two directories that look like this: /folder1/sub1/file1.txt /folder1/sub1/file2.txt /folder1/sub2/file1.txt /folder1/sub2/file2.txt /folder2/sub1/file3.txt /folder2/sub1/file4.txt ...
5
votes
1answer
3k views

What is the best way to partition, and what is the best file-system for a new Hard Disk? [duplicate]

Possible Duplicate: What's your recommendation on drive partitioning schemes for a desktop and home server? Is Btrfs in Maverick considered stable? Bonus: What is the "best" filesystem ...
5
votes
2answers
1k views

Why has Ubuntu moved the default mount points?

Why has Ubuntu and many other Linux distributions moved the default mount points from /media to /media/$USER Example I plug in a USB drive and it's name is EXT4-250GB-USB it used to show up in ...
5
votes
1answer
5k views

Default file system on ubuntu 12.10

Why does ubuntu 12.10 default to ext2 file system? Is ext4 not stable enough?
5
votes
3answers
1k views

Why does every directory have a size 4096 bytes (4 K)?

As the subject says; I want to know why is every directory having a size equals to 4K even if they contain files with sizes greater than 4K. Please have a look at the following:- a) b) PS: I ...
5
votes
1answer
878 views

What triggers file system check?

What are the conditions that trigger file system check at system startup in Ubuntu 11.10?
5
votes
5answers
355 views

Search files by name instantly

Under Windows there is a smart software "Everything" listening to changes in NTFS that allows it to search files by names instantly - for a second or less. Is there such ability for Ubuntu?
5
votes
2answers
16k views

filesystem types for partitions

I am going to dual-boot install Ubuntu1 10.04 on my laptop with Windows 7. I was wondering what filesystem types (such as ext2, ext3, ext4, ReiserFS and whatever might come into mind) are ...
5
votes
1answer
345 views

My home directory just goes away. Why?

I'm running an older Dell GX280, with a new 500GB drive and 2GB RAM. Fresh install with my ~ directory copied from an older HD I got the 500GB to replace. I think I'm running ext4 on both my / and ...
5
votes
1answer
2k views

How do I use gnome trash for files in different partition?

I have my files in a separate partition that is not mounted to /home, but only linked to it. How do I manage to be able to use the gnome trash in those files? For example: partion 2: mounted on ...
5
votes
1answer
344 views

How can I make nautilus use my installed FUSE file systems automatically?

Is there a way to have Nautilus automatically use my FUSE file systems to (for example) open ISOs as folders, or archives as folders, or what ever other 'locations' FUSE supports?
5
votes
2answers
496 views

What is the default behaviour of atime?

I have an Ubuntu 11.04 installation. The /home directory is on a partition which uses the ext4 filesystem. I haven't changed the default configuration so the filesystem is mounted at boot time with ...
5
votes
2answers
116 views

How can I know which folders are created by which program?

I have /usr/share/gtksourceview-2.0/ and I think it maybe due to Mousepad or Geany or Medit text editors. But how can I know for sure without uninstalling them and reinstalling one-by-one? (I don't ...
5
votes
2answers
2k views

What's wrong with my ext4 partition?

What is wrong with this picture? Top is output from "df -h", bottom is gparted. I suspect I'm missing a lot of free space. No problems other than that (yet). Can somebody suggest the best ...
5
votes
2answers
1k views

Technical differences between ways in which UNIX and Windows “mount” devices

Question from which this arose is here: What does it mean to mount something? Since asking about which is "better" or which "worse" can lead to subjective and argumentative answers, I'd like to know ...
5
votes
2answers
2k views

Can I configure low disk space warning to a lesser threshold?

Ubuntu warns me about low disk space even when there are about 2 GiBs free. For me "low disk space" is 50 MiB or less as I use to use my disks at 100% capacity. The warning could be useful for me if ...
5
votes
1answer
3k views

How to get rid of unused jfsCommit processes?

On a Dell Poweredge T620 with Xeon hexacore processor, i notice that there are 14 extraneous processes for the jfs filesystem. On another server, there are similar processes for the xfs filesystem as ...
5
votes
1answer
537 views

Can I undo file operations?

When do you think to add the "undo file operations" like Windows does? If (for a mistake) I move a file I want to CRTL+Z to undo the operation.
5
votes
1answer
245 views

File rollback in U1

We have an XLS file that has been corrupted (we use LibreOffice and it appears that some sort of corruption has taken place). The corrupted file then synced to U1. Is it possible to rollback or ...
5
votes
3answers
2k views

Guide to installing a fully encrypted file system? [duplicate]

Possible Duplicate: How to create an encrypted partition? I have a little Netbook on which I want to install Ubuntu 10.10 (32-Bit) on. However, since it is a portable PC I want to ...
5
votes
5answers
457 views

What is the best way to keep all your files when moving from Windows to Ubuntu?

I've been planning to change my OS to Ubuntu, but my hard disk contains 750GB of files (in two NTFS partitions: 250GB and 700GB). I know that it is possible to keep the larger partition and install ...
5
votes
1answer
2k views

Best FS for SSD as of 10.10 [duplicate]

Possible Duplicate: How do I optimize the OS for SSDs? Given what I think is a common scenario: SSD used as boot disk Conventional HD(s) for bulk storage Ubuntu 10.10 What's the best ...
5
votes
1answer
75 views

What is the significance of permission of `/etc`?

Trying to replicate the problem described in "/etc/profile permission denied!" where OP of the post in her comments mentions the permission string for her /etc directory being drw-r--r--. I issued ...
5
votes
2answers
2k views

Can I override an SD card's write-protect switch?

The write-protect switch on an SD card doesn't connect to any internal electronics, so it must just be respected by the software controlling the card reader. Is there any way for me to override this ...
5
votes
1answer
853 views

How to layout the filesystem for a small SSD and a big HDD?

Since I don't use my laptop's CD-drive I want to put a small (8 GB) SSD into the CD-drive slot (I'll use a caddy similar to this one). I want to use compressed btrfs on the SSD and put all the data on ...
5
votes
2answers
643 views

Where should a non-administrative user save a CA certificate?

I have a CA certificate that I use to connect to a WPA2 Enterprise wireless network. Where within my home folder should I store the .crt file? I don't see anything in the Filesystem Hierarchy ...
5
votes
2answers
1k views

SSHFS files from one server to another

I am trying to find the most secure way to transfer files from one server to another. I have the following architecture: Currently I am using the main user salamis in order to mount the ...
5
votes
6answers
4k views

Not mounting/finding 1TB NTFS drive

I am having trouble with Ubuntu recognizing/finding/mounting one of my hard drives. I dual boot Ubuntu and Windows 7. I had Ubuntu 10.04 and all drives showed up under "Places" I could click on any ...
5
votes
1answer
1k views

How to automount removable devices with options?

I'd like to automount (using the XFCE desktop) USB devices with Btrfs. This works as with any other filesystem just by plugging it in and waiting for two or three seconds for it to appear under ...